                                      :sem {:aspect :progressive
                                            :tense :past}}})
                    (unify c10
-                           root-is-head
+                          root-is-head
+                          head-is-conjugated-and-imperfect-infl
                            {:rule "s-imperfect-nonphrasal"
-                            :head {:phrasal false
-                                   :français {:present {:conjugated true}}}
-                            :synsem {:aux false
-                                     :infl :imperfect
+                            :synsem {:aux false
                                      :cat :verb
                                      :sem {:aspect :progressive
                                            :tense :past}}})

                                     :infl :infinitive
                                     :cat :verb}})
                   (unify h21a
                           root-is-comp
                           {:rule "vp-aux"
                            :head {:phrasal false}
                            :synsem {:aux true
                                     :infl :present
                                     :sem {:tense :past}
                                     :cat :verb}})

                   ;; [nous [être + naître]] => nous somme nées
                   (unify h22
                           root-is-comp

                                :tense :past}}}
   "past perfect" {:synsem {:sem {:aspect :perfect
                                  :tense :past}}}})

(def head-is-conjugated-and-imperfect-infl
  {:head {:français {:imperfect {:conjugated true}}
          :phrasal false
          :synsem {:infl :imperfect}}})

(def head-is-conjugated-and-present-infl
  {:head {:français {:present {:conjugated true}}
          :phrasal false
          :synsem {:infl :present}}})

(declare against-pred)
(declare matching-head-lexemes)
